Home / 40,057.21-55,220.01-31,532.02

Finding the Fourth Proportional to 40,057.21, 55,220.01 and 31,532.02

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Solution

The fourth proportional to 40,057.21, 55,220.01 and 31,532.02 is: 43,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,057.21 : 55,220.01 = 31,532.02 : x
  2. Step 2: Convert to fraction form
    40,057.21/55,220.01 = 31,532.02/x
  3. Step 3: Cross multiply
    40,057.21x = 55,220.01 × 31,532.02
  4. Step 4: Simplify right side
    40,057.21x = 1,741,198,459.72
  5. Step 5: Solve for x
    x = 1,741,198,459.72/40,057.21
  6. Step 6: Final answer
    x = 43,467.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.